CN101148362A - Forsterite-carbon refractory brick and preparation method thereof - Google Patents
Forsterite-carbon refractory brick and preparation method thereof Download PDFInfo
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- CN101148362A CN101148362A CNA2007100531119A CN200710053111A CN101148362A CN 101148362 A CN101148362 A CN 101148362A CN A2007100531119 A CNA2007100531119 A CN A2007100531119A CN 200710053111 A CN200710053111 A CN 200710053111A CN 101148362 A CN101148362 A CN 101148362A
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Abstract
The present invention relates to forsterite-carbon refractory brick and its making process. The technological scheme of the present invention is that the forsterite-carbon refractory brick making process includes mixing forsterite clinker in 50-90 wt%, magnesia in 5-40 wt% and graphite in 5-20 wt%; adding antioxidant in 0-5 wt% and binding agent in 3-7 wt% through stirring or rolling for 15-30 min; pressing to form; and heat treatment at 150-240 deg.c for 12-24 hr. Where, the antioxidant is one or mixture of metal aluminum powder, metal silicon powder and metal magnesium powder; and the binding agent is phenolic resin or mixture of tar and asphalt. The forsterite-carbon refractory brick of the present invention has low cost, environment friendship, high stability, high heat resistance, excellent corrosion resistance and high slag permeation resistance, and can meet the requirement for use in steel making apparatus.
Description
Technical field
The invention belongs to forsterite and graphite is the fire resisting material field of base-material.Relate in particular to a kind of forsterite-carbon refractory brick and preparation method thereof.
Background technology
Metallurgical The application of new technique such as strengthening smelting needs a large amount of high performance refractory materialss, so people research and produce and used magnesia carbon refractory (US274387, EP0370677 in a large number, clear 57-1663621, CN1088193, CN87108137, CN2237074, CN1153757).Because magnesia carbon refractory has good high thermal resistance, resistance to fouling and heat-shock resistance, wearing quality is good, has become the topmost High Temperature Furnaces Heating Apparatus lining material of Steel industry.
Metallurgy industry is annual to need a large amount of magnesia carbon refractories of consumption, but magnesia Mineral resources are limited, and magnesia raw material's growing tension adopts new raw material to replace magnesia raw material and has very important significance.For saving magnesia raw material, the producer that has when producing, add the part rhombspar replace magnesia as main raw material prepare refractory materials (CN1459346, CN1074635), still, the easy aquation of rhombspar also produces the comparatively large vol expansion, and the volume stability of material is bad.Though magnesia add chromite sand can the production resistance to elevated temperatures good refractory materials (CN1060302), the costing an arm and a leg of chromogen ore in sand form, cost is too high, and chromic oxide at high temperature can volatilize sexavalent chrome, and is harmful.
Summary of the invention
Task of the present invention provides that a kind of cost is low, the volume stability of material is good, environmental friendliness, high thermal resistance are good, good erosion resistance and slag penetration resistance are arranged, can satisfy forsterite-carbon refractory brick of steel-making service requirements and preparation method thereof.This refractory brick can be widely used in metallurgical equipments such as steel-making converter, electric arc furnace, steel teeming ladle (ladle), tapping spout.
For realizing above-mentioned task, the technical solution adopted in the present invention is: earlier the forsterite grog of 50～90wt%, the magnesia of 5～40wt%, the graphite of 5～20wt% are mixed, add the antioxidant of 0～5wt%, the wedding agent of 3～7wt%, stir or mixed grind 15～30min, compression moulding, then under 150～240 ℃ of conditions through 12～24h thermal treatment.
Wherein: the MgO content 〉=43.0wt% of forsterite grog, particle diameter are 0～3.5mm, and the MgO content 〉=93.0wt% of magnesia, particle diameter are 0～1mm, and the C content 〉=95.0wt% of crystalline flake graphite, particle diameter are 0～0.15mm; Antioxidant is one or more the mixture in metallic aluminium powder, metallic silicon power, the metal magnesium powder; Wedding agent or be resol or mix for tar and pitch.
Because adopt technique scheme, the present invention is a base-material with aboundresources, forsterite sand cheap, that high thermal resistance is good, replace magnesia raw material.Prepared low, the environmental friendliness of forsterite-carbon refractory brick cost, and have high thermal resistance good, the good erosion resistance and the characteristics of slag penetration resistance are arranged, and the volume stability of material is good.The service requirements of steelmaking equipment can be satisfied, metallurgical equipments such as steel-making converter, electric arc furnace, steel teeming ladle (ladle), tapping spout can be widely used in.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
1 one kinds of forsterite-carbon refractory bricks of embodiment and preparation method thereof are: earlier the forsterite grog of 50～65wt%, the magnesia of 20～40wt%, the graphite of 10～20wt% are mixed, add the resol of the metallic aluminium powder of 3wt% and metallic silicon power, 3～5wt%, mixed grind 15～30min, compression moulding, then under 160～220 ℃ of conditions through 12～24h thermal treatment.
Wherein: the MgO content 〉=43.0wt% of forsterite grog, particle diameter are 0～3.5mm, and the MgO content 〉=93.0wt% of magnesia, particle diameter are 0～1mm, and the C content 〉=95.0wt% of crystalline flake graphite, particle diameter are 0～0.15mm.
2 one kinds of forsterite-carbon refractory bricks of embodiment and preparation method thereof are: earlier the forsterite grog of 75～90wt%, the magnesia of 5～20wt%, the graphite of 5～10wt% are mixed, add the resol of the metallic aluminium powder of 2wt% and metal magnesium powder, 3～5wt%, stir 25～30min, compression moulding, then under 160～220 ℃ of conditions through 12～24h thermal treatment.
Wherein: the MgO content 〉=43.0wt% of forsterite grog, particle diameter are 0～3.5mm, and the MgO content 〉=93.0wt% of magnesia, particle diameter are 0～1mm, and the C content 〉=95.0wt% of crystalline flake graphite, particle diameter are 0～0.15mm.
3 one kinds of forsterite-carbon refractory bricks of embodiment and preparation method thereof are: earlier the forsterite grog of 65～75wt%, the magnesia of 15～30wt%, the graphite of 8～15wt% are mixed, add tar and the pitch of 5～7wt%, stir 20～30min, compression moulding, then under 150～200 ℃ of conditions through 12～16h thermal treatment.
Wherein: the MgO content 〉=43.0wt% of forsterite grog, particle diameter are 0～3.5mm, and the MgO content 〉=93.0wt% of magnesia, particle diameter are 0～1mm, and the C content 〉=95.0wt% of crystalline flake graphite, particle diameter are 0～0.15mm.
According to the forsterite-carbon refractory brick of the described method preparation of this embodiment, it surveys physical and chemical index: apparent porosity is 3～6%; Volume density is 2.65～2.92g/cm
3Compressive strength is 23～55.0MPa; MgO is 45～60%; C content is 4～18%.
This embodiment is a base-material with aboundresources, forsterite sand cheap, that high thermal resistance is good, replaces magnesia raw material.Prepared low, the environmental friendliness of forsterite-carbon refractory brick cost, and have high thermal resistance good, the good erosion resistance and the characteristics of slag penetration resistance are arranged, and the volume stability of material is good.The service requirements of steelmaking equipment can be satisfied, metallurgical equipments such as steel-making converter, electric arc furnace, steel teeming ladle (ladle), tapping spout can be widely used in.
Claims (5)
1. the preparation method of a forsterite-carbon refractory brick, it is characterized in that earlier the forsterite grog of 50～90wt%, the magnesia of 5～40wt%, the graphite of 5～20wt% being mixed, add the antioxidant of 0～5wt%, the wedding agent of 3～7wt%, stir or mixed grind 15～30min, compression moulding, then under 150～240 ℃ of conditions through 12～24h thermal treatment.
2. forsterite-carbon refractory brick according to claim 1 and preparation method thereof, MgO content 〉=the 43.0wt%, the particle diameter that it is characterized in that described forsterite grog are 0～3.5mm, MgO content 〉=the 93.0wt% of magnesia, particle diameter are 0～1mm, and the C content 〉=95.0wt% of crystalline flake graphite, particle diameter are 0～0.15mm.
3. forsterite-carbon refractory brick according to claim 1 and preparation method thereof is characterized in that described antioxidant is one or more the mixture in metallic aluminium powder, metallic silicon power, the metal magnesium powder.
4. forsterite-carbon refractory brick according to claim 1 and preparation method thereof is characterized in that described wedding agent or mixes for resol or for tar and pitch.
5. according to each described forsterite-carbon refractory brick in the claim 1～4 and preparation method thereof prepared forsterite-carbon refractory brick.
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| CNA2007100531119A CN101148362A (en) | 2007-09-03 | 2007-09-03 | Forsterite-carbon refractory brick and preparation method thereof |
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| CNA2007100531119A CN101148362A (en) | 2007-09-03 | 2007-09-03 | Forsterite-carbon refractory brick and preparation method thereof |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337822B (en) * | 2008-08-28 | 2011-05-04 | 武汉科技大学 | MgO-SiC-C fire resistant pouring material based on forsterite and method for preparing same |
| CN101348377B (en) * | 2008-08-21 | 2011-06-15 | 武汉科技大学 | Method for preparing fire-resistant material from synthetic MgO-SiC-C material |
| CN102584281A (en) * | 2012-01-19 | 2012-07-18 | 北京炜润达冶金材料有限公司 | Hydration-resistant hot-state mending material for steelmaking converter and preparation method thereof |
| CN102584282A (en) * | 2012-01-19 | 2012-07-18 | 北京炜润达冶金材料有限公司 | Thermal-state mending material taking forsterite as raw material for converters and preparation method thereof |
| CN103342567A (en) * | 2013-07-11 | 2013-10-09 | 营口和隆耐火材料有限公司 | Forsterite carbon brick and production method thereof |
| CN103553584A (en) * | 2013-11-22 | 2014-02-05 | 武汉科技大学 | Cordierite and preparation method thereof |
| CN104557081A (en) * | 2014-12-12 | 2015-04-29 | 长兴优联马科技有限公司 | Special refractory brick capable of preventing chemical scabs of ladle |
| CN105254327A (en) * | 2015-09-30 | 2016-01-20 | 安徽坤隆新型建材有限公司 | Environment-friendly autoclaved aerated concrete block and preparation method thereof |
| CN105272274A (en) * | 2015-09-18 | 2016-01-27 | 洛阳科创新材料股份有限公司 | Preparation method of anti-osmosis permeable brick fire clay |
| CN101412629B (en) * | 2008-08-29 | 2016-12-14 | 瑞泰科技股份有限公司 | Periclase-magnesium aluminate spinel composite refractory brick and production technology thereof |
| CN106278316A (en) * | 2016-08-15 | 2017-01-04 | 长兴明晟冶金炉料有限公司 | A kind of continuous casting tundish dry ramming mass |
| CN106316430A (en) * | 2016-08-22 | 2017-01-11 | 大石桥市中建镁砖有限公司 | Synthetized forsterite castable and preparation method thereof |
| CN107108369A (en) * | 2014-12-22 | 2017-08-29 | 耐火材料控股有限公司 | Refractory product and its application |
| CN107117977A (en) * | 2017-06-29 | 2017-09-01 | 长兴俊泽炉窑工程有限公司 | Lightweight refracrory for building and preparation method thereof |
| CN108129136A (en) * | 2018-01-04 | 2018-06-08 | 武汉科技大学 | Copper converter lower part magnesia-forsterite-carbon composite and preparation method thereof |
| CN115093236A (en) * | 2022-05-24 | 2022-09-23 | 山西昊业新材料开发有限公司 | Forsterite VD/VOD ladle clearance area magnesia carbon brick and preparation method thereof |
-
2007
- 2007-09-03 CN CNA2007100531119A patent/CN101148362A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101348377B (en) * | 2008-08-21 | 2011-06-15 | 武汉科技大学 | Method for preparing fire-resistant material from synthetic MgO-SiC-C material |
| CN101337822B (en) * | 2008-08-28 | 2011-05-04 | 武汉科技大学 | MgO-SiC-C fire resistant pouring material based on forsterite and method for preparing same |
| CN101412629B (en) * | 2008-08-29 | 2016-12-14 | 瑞泰科技股份有限公司 | Periclase-magnesium aluminate spinel composite refractory brick and production technology thereof |
| CN102584281A (en) * | 2012-01-19 | 2012-07-18 | 北京炜润达冶金材料有限公司 | Hydration-resistant hot-state mending material for steelmaking converter and preparation method thereof |
| CN102584282A (en) * | 2012-01-19 | 2012-07-18 | 北京炜润达冶金材料有限公司 | Thermal-state mending material taking forsterite as raw material for converters and preparation method thereof |
| CN103342567B (en) * | 2013-07-11 | 2015-08-12 | 营口和隆耐火材料有限公司 | Forsterite carbon brick and production method thereof |
| CN103342567A (en) * | 2013-07-11 | 2013-10-09 | 营口和隆耐火材料有限公司 | Forsterite carbon brick and production method thereof |
| CN103553584A (en) * | 2013-11-22 | 2014-02-05 | 武汉科技大学 | Cordierite and preparation method thereof |
| CN104557081A (en) * | 2014-12-12 | 2015-04-29 | 长兴优联马科技有限公司 | Special refractory brick capable of preventing chemical scabs of ladle |
| CN107108369A (en) * | 2014-12-22 | 2017-08-29 | 耐火材料控股有限公司 | Refractory product and its application |
| CN107108369B (en) * | 2014-12-22 | 2020-08-25 | 耐火材料控股有限公司 | Refractory product and use thereof |
| CN105272274A (en) * | 2015-09-18 | 2016-01-27 | 洛阳科创新材料股份有限公司 | Preparation method of anti-osmosis permeable brick fire clay |
| CN105272274B (en) * | 2015-09-18 | 2017-09-12 | 洛阳科创新材料股份有限公司 | A kind of preparation method of impermeable air brick chamotte |
| CN105254327A (en) * | 2015-09-30 | 2016-01-20 | 安徽坤隆新型建材有限公司 | Environment-friendly autoclaved aerated concrete block and preparation method thereof |
| CN106278316A (en) * | 2016-08-15 | 2017-01-04 | 长兴明晟冶金炉料有限公司 | A kind of continuous casting tundish dry ramming mass |
| CN106316430A (en) * | 2016-08-22 | 2017-01-11 | 大石桥市中建镁砖有限公司 | Synthetized forsterite castable and preparation method thereof |
| CN107117977A (en) * | 2017-06-29 | 2017-09-01 | 长兴俊泽炉窑工程有限公司 | Lightweight refracrory for building and preparation method thereof |
| CN108129136A (en) * | 2018-01-04 | 2018-06-08 | 武汉科技大学 | Copper converter lower part magnesia-forsterite-carbon composite and preparation method thereof |
| CN108129136B (en) * | 2018-01-04 | 2020-10-30 | 武汉科技大学 | Magnesium oxide-forsterite-carbon composite material for lower part of copper smelting converter and preparation method thereof |
| CN115093236A (en) * | 2022-05-24 | 2022-09-23 | 山西昊业新材料开发有限公司 | Forsterite VD/VOD ladle clearance area magnesia carbon brick and preparation method thereof |
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